Vibrator.



L. L. MONTGOMERY.

VIBRATOR.

APPLICATION FILED JAN.30,1914.

L $7,884.. Patented Nov. 17,1914.

I. 3? 2.4 17g/5 5 /9 3 L18 V28 2o' Sgm THF MORRIS PETERS C0..PHO1`OLIT.'-IO., WASHINGTON, D.

LEAL L. MONTGOMERY, OF SUPERIOR, WISCONSIN.

VIBRATOR.

Specification of Letters Patent.

Patented Nov. 17, 1914.

Application mea January 3o, 1914. serial No. 815,415.

T0 all whom it may concern Be it known that I, LEAL L. MONTGOMERY, acitizen of the United States, and a resident of Superior, in the countyof Douglas and State of vWisconsin, have invented a new and ImprovedVibrator, of which the following is a full, clear, and exactdescription.

My invention relates to vibrators used for massage purposes, and hasreference more particularly to vibrators actuated by elastic uid.

The object of the device is to provide a simple, compact, strong andinexpensive device which 1s automatic in its action, which has few partsto get out of order and therefore reduces the cost of the device and its11p-keep to a minimum.

I attain the above object by providing a plunger adapted to be actuatedperiodically by elastic iuid operable means, with means for returningthe plunger to its normal position.

The invention consists of the construction and combination of parts tobe more fully described hereinafter and fully set forth in the claims.

Reference is to be had to the accompanying drawings forming a part ofthis speciiication, in which like characters indicate correspondingparts in all the views and in which:

Figure 1 is an axial, vertical section through an embodiment of myinvention; Fig. 2 is a similar view showing the plunger under the actionof the piston; Fig. 3 is a perspective view of the device; and Fig. 4fis a section on line 1 -4, Fig. 1.

Referring to the drawings, 5 represents the shell or cylinder closed atthe ends by means of plugs 6 and 7, preferably threaded therein. Airinlets 8 are provided in the cylinder adjacent the plugs 6 and 7; andsimilar air outlets 9 are provided in the cylinder, which are closer tothe plugs 6 and 7 than the inlets 8. Said outlets 9 are interconnectedby a tubular member 10 forming an extension of the cylinder and whichextension is provided with a lateral aperture 11 formed in the centrallateral extension 12 of the shell or cylinder 5. Threaded with one endinto said aperture 11 is a tubular member 13 which forms a stem orsupport for a handle 14 to which the cylinder 5 is securedby meansofanipple 15, to `which nipplethe intake 16 of `a vacuum pump can besecured. Between the projection 12 and the handle 1% a rubber washer 17is interposed, whereby the vibration on the handle due to thereciprocating motion of the parts in the cylinder is're duced.

Mountediwithin the cylinder 5 is a valve formed of two cupfshapedmembers 18 facing each other and interconnected by means of a stem orrod 19. The length of each of said cup-shaped members 18 is such thatwhen the vmember covers the inlet 8 it uncovers the corresponding outlet9, and vice versa. The length of said rod 19 is such that when Ione ofthe members 18 uncovers the air outlet 9, the other of said membersuncovers the inlet 8, z. e., when the valve uncovers the air outlet atone end, it simultaneously uncovers the air inlet at the opposite end.Mounted to slide on the rod i9 is a sleeveA 21 forming the piston in thecylinder, the ends 22 of which are reduced to fit snugly into the cups18. Each of said cups at the bottom thereof carry a resilient member y23which is adapted to' be engaged by the corresponding extremity of thereduced end 22 of the piston, thereby closing the apertures 24E providedin the bottom of the cups, which apertures establish communicationbetween the spaces a and ZJ at each side of said bottom.

The plug 7 is provided with an axial aperture 25 enlarged at the innerend of the plug, as shown at 26. Engaging the aperture 25 is a plunger27 the head 28 of which fits into the enlarged portion 26.` A

coil spring 29 carried by the plungerV is` also positioned in saidenlarged portion and adapted to maintain the said plunger in normalposition. The projecting end of the plunger 27 is threaded and thereonadapted to receive members suitable for massage` of which 30 is one. Thehead 28 of )said plunger is provided with a recess into which is fitteda bumper 31, preferably of rubber,

against which the valve strikes when the piston moves toward theplunger, as shown in Fig. 2. The plug 6 at its inner end is alsoprovided with a bumper 32 against which the opposite end of the valve isadapted to strike when the same is moved away from its engagement withthe plunger by the movement of the cylinder in the direction opposite tothat stated before. the position of which is shown Ain Fig. 1. Both ofsaid bumpers 'are,intendedv for the purpose of reducing the vibrationcaused by the reciprocating movement of the plunger and valve in thecylinder."

The action of my device is as follows: The air drawn by the suction pumpfromv the spaces a and Z), see Fig. 1, through the out let 9, reducesthe pressure therein and permits the atmospheric pressure acting throughthe inlet 8 to force the piston 21 to move yfrom its position shown inFig. 1 toward the cup18 at the right side of the plunger in saidigure.The momentum of said piston, when it strikes the bottom of the cup 18nieves the valve therewith and causes the same to strike the bumper 31,thus forcing the plunger out ofthe plug 7. This movement` of the valveuncovers the air outlet 9 at the opposite end ofthe cylinder, closingthe inlet 8 at the same yend, thus reducing the pressure in thespaces aland 6; formed by the sleeve, cup and cylinder atvthe said end of thecylinder and causing the return of the piston 21 and the valve therewithto i the position shown in Fig.` 1; thus a complete cycle of the pistonandv valve have been described. The purpose of the coil spring 29 in theplug 7 is not only to restore .the

. plunger 27 to its normal position but also to reduce the shockcausedby the valve striking the bumper 31 of the plunger.

The sleeve or piston 21 and the cup-shaped members 1S are made to ntsnugly into the cylinder so as toreduce the leakage of airtherebetweento a minimum. Furthermore, the sliding movement of saidpiston or sleeve 21 and the stem 19 ofthe valve is of such a nature! asto produce a momentum which l will vnot only be able to carry the valveto cylinder.

It is evident that v-ar-ious changes might be made and modicationsresorted to i-n the construction and arrangement ofthe par-ts describedwithout departing `from the spirit andv scope-of my invention; hence,.Ido not wish to limit myself to the exact construction shown. v

Having thus described my invention, I claim as new and desire to secure'by Letters Patent: y 1. ln a vibrator, a plunger;elastic-liuid operablemeans for actuating. the plunger periodically; a member carried rby theplunf ger and adapted to be engagedV by Vsaid .fluid operable meansvwhereby the noise `and., shockl (1f-engagement is diminished; mea-nsfor returning said plunger toits normal sition.

operable means for actuating the plunger periodically; an elastic membercarried by the plungery and adapted to be engaged by said fluid operablemeans; and resilient means associated with said plunger for restoringthe same to its normal position.

3. In a-vibrator, a cylindergfa'plu'nger projectingfrom one end of saidcylinder;

a. ln aI vibrator,=a cylinder; a plunger projecting through one end ofsaid cyliny der; a piston iny said cylinder;v means for reciprocatingsaid piston by reducing the pressure in said cylinder, `whereby theplunger is periodically movedby the piston out ofthe cylinder; meansrestoring said plunger to its normal position; and means carried by saidplunger and cylinder and ladapted to be engagedv by said piston wherebythe vibration, due to the engagement `of saidkpiston with the cylinderand the plunger, is reduced. i in a vibrator,a.` cylinder; a plungerprojecting through one end of said cylinder, said .cylinder havinganairinlet and an air outlet adjacent the ends thereof; a .valve for saidinlets and outlets; a piston carried by said valve; means for exhausting.air from the cylinder through the outlets whereby the piston isreciprocated with said valve whereby said valve is adapted to force saidplunger periodically out .of the cylinder; and means for restoring theyplunger to its normal position.

los

6. In a vibrator, a cylinder; a plunger projecting through one end ofsaid cylinder, said cylinder having an air inlet and an air outletadjacent thev ends thereof; a valve for said inlets and outlets; apiston carried byl said valve; means for exhausting vair from thecylinder through the outlets whereby the v piston is .,reciprocated withsaidl valve and said valve is adapted to force lsaid plungerperiodically out yof the cylinder; means ffor restoring the plunger, toits normal position; andbumpers carried by said :cylinder fand plungerand. adaptedto be .engaged by said valve thereby reducing the vibrationcaused by .the engagementfof said valve with the plunger andcylinder.

7. In a vibrator, a cylinder; a plunger projecting .through one endy ofsaid cylinder, said cylinder havingy air inlets -andair outlets adjacentthe endsthereof; a valveadapt` ed Yto-'o'pen -or4 tclesesimultaneously the in-4 lets. and ,outlets it vpposite, ends; .1a.piston esistita eee @decies ist the air pressure in said cylinderthrough the air outlet of the same whereby said piston is reciprocatedon said valve and therewith in said cylinder causing a periodicalengagement of the valve with the plunger, thereby forcing the plungerout of the cylinder; and means for restoring the plungerrr to its normalposition.

S. In a vibrator, a cylinder; a plunger' projecting through one end ofsaid cylinder, said cylinder having air inlets and air outlets adjacentthe ends thereof; a valve adapted to open or close simultaneously theinlets and outlets at opposite ends; a piston carried by said valve;means for reducing air pressure in said cylinder through the air outletof the same whereby said piston is reciprocated on said valve andtherewith in said cylinder causing a periodical engagement of the valvewith the plunger, thereby forcing the plunger out of the cylinder; meansfor restoring the plunger to its normal position; and rubber bumperscarried by said plunger and cylinder and adapted to be engaged by saidvalve substantially as and for the purpose set forth.

9. In a vibrator, a cylinder; a plunger projecting through one end ofsaid cylinder, said cylinder having air inlets and air outlets adjacentthe ends thereof, said inlets being nearer the ends; a valve adapted toopen or close simultaneously the inlets and outlets at opposite ends; apiston carried by said valve; means for reducing air pressure in saidcylinder through the air outlets of the same whereby said piston isreciprocated on said valve and therewith in said cylinder causing' aperiodical engagement of the valve with the plunger, thereby forcing theplunger out of the cylinder; means for restoring the plunger to itsnormal position; and rubber bumpers carried by said plunger and cylinderand adapted to be engaged by said valve alternately, substantially asand for the purpose set forth.

l0. In a vibrator, a shell; plugs at the extremities of said shell; aplunger carried by one of said plugs projecting out of and into saidshell, said shell having apertures adjacent the plugs forming air inletsand air outlets, said outlets being nearer to the plugs than the inlets;a cup-shaped member for controlling the inlet and outlet at each end ofsaid shell; a stem connectinfr said cup-shaped members; a sleeve fittingsnugly on said stem and into said shell adapted to reciprocate betweensaid cupshaped members, said cup-shaped members having means adapted toestablish communication between the spaces in the cylinder formed by theplug with the cup-shaped member and the sleeve with the same; and meansfor reducing the pressure in said spaces through the air outlets in theshell whereby said sleeve is reciprocated on said stem and in said shellwith said cup-shaped members.

11. In a vibrator, a shell; plugs at the extremities of said shell; aplunger carried by one of said plugs projecting out of and into saidshell, .said shell having apertures adjacent the plug forming air inletsand air outlets, said outlets being nearer the plugs than the inlets; acup-shaped member itting snugly into the shell for controlling theinlets and outlets at each end of said shell; a stem connecting saidcup-shaped members; a sleeve fitting snugly into said shell and on tosaid stem and adapted to reciprocate on said stem and therewith in saidshell, said cup-shaped members having means adapted to establishcommunication between the spaces in the shell formed by the plug withthe cup and the cup with the sleeve; means for reducing the pressure. insaid spaces through the air outlets in the shell whereby said sleeve isreciprocated on said stem and in said shell with said cupshaped memberand stem whereby the plunger is periodically forced out of the shell;and resilient means associated with the plunger for restoring the sameto its normal position.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

LEAL L. MONTGOMERY. lfVitnesses:

JNO. MCKELLAR, EDW. OUELLETTO.

Copies of this patent may ne obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, ID. C.

